{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["material", "manufacturing standard", "engineering feature", "process parameter", "biomedical"], "input": "A modified double ellipsoidal heat source model is utilized to ensure constant arc heat input in calculation in the case that molten pool surface dynamically changes ."}
{"material": [], "manufacturing standard": [], "engineering feature": [], "process parameter": [], "biomedical": []}